Line spool holder



FIG. 1 is a perspective view of a line spool holder showing my new design;

FIG. 2 is a right side elevational view thereof, the left side elevational view being identical;

FIG. 3 is a top plan view thereof, the bottom plan view being identical;

FIG. 4 is a left end view thereof; and,

FIG. 5 is a right end view thereof. 

The ornamental design for a line spool holder, as shown and described. 